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import { Input, Output, EventEmitter } from '@angular/core';
import { ChangeDetectionStrategy, ChangeDetectorRef } from '@angular/core';
import { ViewChildren, QueryList } from '@angular/core';
import { CdkDragDrop } from '@angular/cdk/drag-drop';
import { Subscription } from 'rxjs';
import { OnForm } from '@unpispas/upp-wdgt';
import { ViewRenderer } from '@unpispas/upp-wdgt';
import { alertService } from '@unpispas/upp-base';
import { languageService, languageSupport } from '@unpispas/upp-base';
import { dataService, ProductOptView } from '@unpispas/upp-data';
import { viewService } from '@unpispas/upp-base';
import { ProductOpt } from '@unpispas/upp-data';
import { ProductView } from '@unpispas/upp-data';
import { CategoryView } from '@unpispas/upp-data';
import { UppOptionEditComponent } from '../option/edit/upp-edit';
@Component({
selector: 'upp-category-view',
changeDetection: ChangeDetectionStrategy.OnPush,
templateUrl: './upp-view.html',
styleUrls: [
'./upp-view.scss'
],
providers: [{
provide: ViewRenderer,
useFactory: (change: ChangeDetectorRef) => new ViewRenderer(change),
deps: [ChangeDetectorRef]
}]
})
export class UppCategoryViewComponent extends languageSupport implements OnForm, OnChanges, OnDestroy {
@Input() product: ProductView | null = null;
@Input() category: CategoryView | null = null;
@Output() Updated = new EventEmitter<CategoryView>();
@Output() Edit = new EventEmitter<CategoryView>();
constructor(private lang: languageService, private change: ViewRenderer, private alertCtrl: alertService, private data: dataService, public view: viewService){
super(lang, change.cdref);
}
private _catgry_subscription: Subscription | null = null;
private _prodct_subscription: Subscription | null = null;
ngOnChanges(){
if (this._prodct_subscription){
this._prodct_subscription.unsubscribe();
this._prodct_subscription = null;
}
if (this._catgry_subscription){
this._catgry_subscription.unsubscribe();
this._catgry_subscription = null;
}
if (this.product){
this._prodct_subscription = this.product.OnViewRefresh.subscribe(
() => {
this.change.markForCheck();
});
}
if (this.category){
this._catgry_subscription = this.category.OnViewRefresh.subscribe(
() => {
this.change.markForCheck();
});
}
}
ngOnDestroy(): void {
super.OnDestroy();
if (this._prodct_subscription){
this._prodct_subscription.unsubscribe();
this._prodct_subscription = null;
}
if (this._catgry_subscription){
this._catgry_subscription.unsubscribe();
this._catgry_subscription = null;
}
}
/********************************/
/* ONFORM IMPLEMENTATION */
/********************************/
@ViewChildren(UppOptionEditComponent) _formitems!: QueryList<OnForm>;
CanAccept(): boolean[] {
return [ true, true ];
}
async OnApply(): Promise <boolean> {
if (!this.category){
return false;
}
const _forms = this._formitems.toArray();
for (const _form of _forms){
if (_form && !(await _form.OnApply())){
return false; // operation completed
}
}
return true;
}
async OnAccept(): Promise <boolean> {
Iif (!this.category){
return false;
}
await this.OnApply();
// remove the invalid dependencies
for (const _depend of this.category.depends){
const productoptview = this.data.alives.get(_depend.option) as ProductOptView;
if (productoptview){
if (!productoptview.IsValid || !productoptview.Enabled){
_depend.status = 'DE';
}
}
}
// remove the invalid options
for (const _option of this.category.options){
if (!_option.IsValid || !_option.Enabled){
_option.status = 'DE';
}
}
// remove empty categories
if (this.category.options.length == 0){
this.category.status = 'DE';
}
return true;
}
async OnCancel(): Promise <boolean> {
const _forms = this._formitems.toArray();
for (const _form of _forms){
if (_form && !(await _form.OnCancel())){
return false; // operation completed
}
}
return true;
}
/********************************/
/* DISPLAY OPTIONS */
/********************************/
OptionTrack(index: number, option: ProductOptView): any {
return option?._uuid || null;
}
get CanUp(): boolean {
if (!this.product || !this.category || (this.product.categories.length == 0)){
return false;
}
const pos = 0; // first array position
return (this.product.categories[pos] != this.category);
}
get CanDown(): boolean {
if (!this.product || !this.category || (this.product.categories.length == 0)){
return false;
}
const pos = this.product.categories.length - 1; // last array position
return (this.product.categories[pos] != this.category);
}
/********************************/
/* EVENT HANDLERS */
/********************************/
OnUpdated(){
this.Updated.emit();
}
OnCategoryEdit(){
if (this.category){
this.Edit.emit(this.category);
}
}
OnCategoryUp(): void {
Iif (!this.product || !this.category){
return;
}
const pos = this.product.categories.indexOf(this.category);
if (pos != -1){
const _element = this.product.categories[pos];
this.product.categories.splice(pos+0, 1);
this.product.categories.splice(pos-1, 0, _element);
}
for (let _idx=0; _idx < this.product.categories.length; _idx++){
this.product.categories[_idx].sort = _idx;
}
this.Updated.emit();
}
OnCategoryDown(): void {
Iif (!this.product || !this.category){
return;
}
const pos = this.product.categories.indexOf(this.category);
if (pos != -1){
const _element = this.product.categories[pos];
this.product.categories.splice(pos+0, 1);
this.product.categories.splice(pos+1, 0, _element);
}
for (let _idx=0; _idx < this.product.categories.length; _idx++){
this.product.categories[_idx].sort = _idx;
}
this.Updated.emit();
}
OnOptionDrop(event: CdkDragDrop<ProductOptView[]>, options: ProductOptView[]): void {
const _prev = event.previousIndex;
const _next = event.currentIndex;
const _element = options[_prev];
options.splice(_prev, 1);
options.splice(_next, 0, _element);
for (let _idx=0; _idx < options.length; _idx++){
options[_idx].sort = _idx;
}
this.Updated.emit();
this.change.markForCheck();
}
OnAddOption(){
if (!this.category){
return;
}
const _option = new ProductOpt(null, this.data);
Iif (_option){
_option.product = this.category.product.object;
_option.category = this.category.object;
_option.sort = this.category.options.length;
_option.status = 'AC';
this.category.AddOption(_option);
}
}
} |